Carpet sweeper



June 1, 1937. F. w. PULLEN 2,082,652

CARPET SWEEPBR Filed March 16, 1935 INVENTOR.

4 1 I 2 BY WM f ATTORNEYS- Patented June 1, 1937 UNiTED STATES PATENT OFFICE CARPET SWEEPER Rapids, Mich.

ADDlicationMarch 16, 1935, Serial No. 11,484

4 Claims.

The objects of this invention are:

First, to provide a new and improved arrangement for suspending a metallic case on the floating axlesof a carpet sweeper having acentrally disposed brush with driving hubs and floor wheels supported on the floor axles to engage the driving hubs, said means serving also to hold the floor wheels in engagement with the driving hubs on the brush.

Second, to provide such a means that is especially adapted fornsein carpet sweepers having metallic cases.

Third, to provide such means suitable especially for carpet sweepers having metallic cases which means are simple and inexpensive and may be inexpensively assembled.

Further objects and advantages pertaining to details and economies of construction and op; eration will appear from the description to follow. The device is defined in the claims. A preferred embodiment of my invention is shown in the accompanying drawing, in which:

Fig. 1 is a sectional View across a carpet sweeper case looking at the case end from the inside.

Fig. 2 is a section taken on line 22 of Fig. 1.

Fig. 3 is a detail perspective view showing the means of attaching the supporting springs to the case end.

In the drawing, I is a carpet sweeper case having the Wooden side bars 2, a metallic shell top 3, and a metallic case end 4 which is slotted as at 5 to receive a floor brush 6 having a driving hub 1. 8, 3 are floor wheels fastened together by axles 9 which extend through the carpet sweeper case I. l0, H] are dump pans held in place by the spring means i l which forms no part of this invention so will not be described in detail. I2 is the handle bail which is aihxed to the sweeper case in conventional manner.

The case end 4 is provided with openings it which openings are larger than the axle 9 at the point where it extends through the opening to permit the wheels to be moved either vertically or horizontally. The floating axles 9 pass through the sweeper case I as shown in Fig. 2, and the sweeper case is suspended thereon by means of springs 54 which are so arranged that the sweeper case is supported from the axle 9 merely by these springs and the springs are so arranged that in addition to supporting the case they also force the floor wheels to engagement with the brush hub 1 to drive the brush.

In the case end G at a point above the openings l3 and toward the end of the case from the openings 13 are struck up sleeves l5, These sleeves are disposed substantially vertically although they can be somewhat slanted if desired. The end of thespring wire I4 is bent at substantially a right angle, as shown in Fig. 3, to form a pin l6 which is inserted into the 5 sleeve l5 from the bottom. The other end of the spring which is curved as shown in Fig. 3, has a. bend .1! arranged to engage the top of an axle 9 as shown best in Fig. 1. The curve of the spring extends toward the brush hub and extends from the sleeve !5 beyond the opening i3, as shown, so that the spring tends to support the case and also to direct the wheels 8 generally toward the drivinghub 'l of thebrush.

It will be appreciated by those skilled in the art that with this arrangement the springs may be made of ordinary spring wire bent to shape and that the sleeves 15 may be struck up in a stamping operation which forms the case end 4. It will be further appreciated that in the matter of assembly it is a simple operation to insert the pin l6 of the spring M into the sleeve I5 and that the spring can be flexed and the bent portion I! placed over the top of the axle passing through the case. 25

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a carpet sweeper having a case, a centrally disposed brush having driving hubs at its ends and floor wheels engaging said brush hubs and connected by floating axles extending through the case, the combination of a metallic case end having a pair of openings therein through which the axles extend and larger than the axles extending therethrough, a pair of substantially vertically disposed sleeves struck up inwardly from the metal of the case end and disposed above and toward the end of the case end from said opening, and a pair of springs for supporting the case and for urging the wheels toward the brush hubs, comprising curved wires each having one end bent outwardly at an angle to the spring and fitted within one of the sleeves from the bottom and having the other end provided with a bend therein facing downwardly and engaging the top of an axle when the spring is compressed, whereby the force of the spring urges the floor wheels downwardly and toward the brush hubs and urges the outwardly bent 50 end of the spring into place in said sleeve, said springs being disposed with the curves extending toward the brush and beyond the axle with which they are engaged.

2. In a carpet sweeper having a case, a centrally disposed brush having driving hubs at its ends and floor wheels engaging said brush hubs and connected by floating axles extending through the case, the combination of a metallic V case end having a pair of openings therein through which the axles extend and larger than the axles extending therethrough, a pair of substantially vertically disposed sleeves disposed above and toward the end of the case end from said opening, and a pair of springs for supporting the case and for urging the wheels toward the brush hubs, comprising curved wires each having one end bent outwardly at an angle to the spring and fitted within one of the sleeves from the bottom and having the other end provided with a bend therein facing downwardly and engaging the top of an axle when the spring is compressed, whereby the force of the spring urges the floor wheels downwardly and toward the brush hubs and urges the outwardly bent end of the spring into place in said sleeve, said springs being disposed with the curves extending toward the brush and beyond the axle with which they are engaged.

3. In a carpet sweeper having a case, a centrally disposed brush having driving hubs at its ends and floor wheels engaging said brush hubs and connected by floating axles extending through the case, the combination of a metallic case end having a pair of openings therein through which the axles extend and larger than the axles extending therethrough, a pair of substantially vertically disposed sleeves struck up inwardly from the metal of the case end and disposed above said opening, and a pair of springs for supporting the case and for urging the wheels toward the brush hubs, comprising curved wires each having one end bent outwardly at an angle to the spring and fitted within one of the sleeves from the bottom and having the other end provided with a bend therein facing downwardly and engaging the top of an axle when the spring is compressed, whereby the force of the spring urges the floor wheels downwardly and toward the brush hubs and urges the outwardly bent end of the spring into place in said sleeve.

4. In a carpet sweeper having a case, a centrally disposed brush having driving hubs at its ends and floor wheels engaging said brush hubs and connected by floating axles extending through the case, the combination of a metallic case end having a pair of openings therein through which the axles extend and larger than the axles extending therethrough, a pair of substantially vertically disposed sleeves disposed above said opening, and a pair of springs for supporting the case and for urging the wheels toward the brush hubs, comprising curved wires each having one end bent outwardly at an angle to the spring and fitted within one of the sleeves from the bottom and having the other end provided with a bend therein facing downwardly and engaging the top of an axle when the spring is compressed, whereby the force of the spring urges the floor wheels downwardly and toward the brush hubs and urges the outwardly bent end of the spring into place in said sleeve.

FRED W. PULLEN. 

